What you are looking for is called buffering is GIS. From a given polyline (or point or polygon), you can buffer it a certain distance and get a polygon. Buffering is not always an easy thing to do though, especially from scratch such as using parallel lines, which can produce inside-out artifacts, etc.
However, if you're going back to the (spatial?) database server to do the comparison, there is likely functionality there to buffer lines and/or check for overlap of lines with a tolerance. Even if there isn't, you're still probably better off building something on the server than trying to do it in JavaScript. On Nov 26, 10:23 pm, mfemia <[EMAIL PROTECTED]> wrote: > Bill's function works great when the gap value is set low but when I > increase it to 500px approx. 250-300m at the highest zoom level, it > generates polylines that would produce an 'inside out' polygon. > > Link:www.uvm.edu/~mfemia/parallel.php > > On Nov 26, 7:56 pm, Esa <[EMAIL PROTECTED]> wrote: > > > I think you are searching something like Bill's parallel > > polylineshttp://wheresthepath.googlepages.com/parallellines.htm --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
